DISPLAY CONTROLLER AND STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To display the whole image of process data without switching a display screen by displaying a 1st display range which is specific in an object display area to be displayed on the display screen of a screen display means and displaying a 2nd display range which is specified in the object display area to be displayed by a projection display means. SOLUTION: A CPU 2 specifies a window range showing the size of a window displayed on the desk-top screen of a display device 4 and writes data on the desk-top screen of a frame memory in a VRAM 5 so that windows overlap. The CPU 2 displays the frame memory on the desk-top screen of the display device 4. When a logical screen is selected as a projecting method and all data are specified as a data range, a projection display device 7 projects and displays all the process data irrelevantly to the physical screen size of the display device 4, so editor operation on the display device 4 can be carried out while the whole image on the projection display device 7 is recognized.